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Mathematics, 03.08.2019 14:00 mine9226

For the past three months, grace used her cell phone for 43 minutes, 62 minutes, and 57 minutes. how many minutes would she have to use her cell phone this month for the average usage over the four months to be 55 minutes

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For the past three months, grace used her cell phone for 43 minutes, 62 minutes, and 57 minutes. how...
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